they eventually become. If your slices are small, maybe you will never
siftDown(arr, n, i);
。关于这个话题，服务器推荐提供了深入分析
这种方法通过类型别名和转换器封装了平台差异，避免了平台侧重复编写转换逻辑。
Easy rollback: In case of problems, it’s possible to return to a previous system version (it creates a boot menu entry at each update).